BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Textbook Question
Chapter 37, Problem 3U
What proportion of the soil volume is occupied by air and water?
a. 10%
b. 25%
c. 50%
d. 75%
e. 90%
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Select the following characteristics that clay soils possess.
I. Poor aeration.
II. Poor drainage.
III. Soil not compacted.
IV. Good water retention.
V. Mineral content is low.
A. II, V.
B. I, II, IV.
C. III, IV, V.
D. I, II, III, IV.
What fraction of the soil represents the most active?
A. Clay
B. Pore spaces
C. Humus
D. Soil colloids
Soil pH affects availability of nutrients for root absorption. The following statements are true except*
a. Low pH results in an increase in Aluminum toxicity.
b. Low pH results to unavailability of major nutrient elements.
c. Toxic metals are more available in acidic soil.
d. Low pH results in slow activity of soil-inhabiting microorganisms.
Chapter 37 Solutions
BIOLOGY
Ch. 37.1 - Prob. 1LOCh. 37.1 - Prob. 2LOCh. 37.1 - Prob. 3LOCh. 37.2 - Prob. 1LOCh. 37.2 - Prob. 2LOCh. 37.2 - Describe the goal of food fortification research.Ch. 37.3 - Prob. 1LOCh. 37.3 - Prob. 2LOCh. 37.3 - Prob. 3LOCh. 37.4 - Prob. 1LO
Ch. 37.4 - Explain the main effect on herbivores of a higher...Ch. 37.4 - Prob. 3LOCh. 37.5 - Prob. 1LOCh. 37.5 - Prob. 2LOCh. 37.5 - Prob. 3LOCh. 37 - Prob. 1IQCh. 37 - Prob. 2IQCh. 37 - Which of the following is NOT found in topsoil? a....Ch. 37 - Prob. 2UCh. 37 - What proportion of the soil volume is occupied by...Ch. 37 - Which of the following is a micronutrient? a....Ch. 37 - Prob. 5UCh. 37 - Prob. 6UCh. 37 - a C4 plant, the Calvin cycle occurs in a. the...Ch. 37 - One potential problem with using poplars to remove...Ch. 37 - Prob. 1ACh. 37 - If you wanted to conduct an experiment to...Ch. 37 - Which of the following would decrease nitrogen...Ch. 37 - Which of the following might you do to increase...Ch. 37 - Prob. 5ACh. 37 - Prob. 1SCh. 37 - Describe an experiment to determine the amount of...Ch. 37 - Prob. 3S
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- Name the following as soil forming processes: a. Soil erosion b. Formation of humus c. Weathering of sand d. Nutrients absorbed by plant roots e. deposition of organic matter f. Leaching of water along with dissolved ionsarrow_forwardCation Exchange capacity is: Group of answer choices a. The amount of cations that can be held by a given mass of soil. b. Affected by soil texture c. Affected by the amount of organic matter/Humus in a soil. d. Affected by the amount of clay in a given soil e) All of the abovearrow_forwardCamellia and azalea are plants that produce yellow leaves, which is considered an undesirable outcome, when they are grown on alkaline soil. Which of the statements below support the fact about camellia and azalea stated above? a. Loam soil is not advisable to be used in growing camellia and azalea because of its acidity. b. Camellia and azalea should not be planted in chalk soil. c. Camellia and azalea produced yellow leaves because they are planted in acidic soil. d. Camellia and azalea require chalk soil to counter the effect of the alkaline soil used.arrow_forward
- 26, The movement of water through the soil is determined by the type of soil only. a. True b. False 27. Sand has less surface area than clay. True b. a. False 28. How much of a growing plant cell is made up of water? a. 50-60% b. 60-70% C. 70-80% d. 80-90% e. 90-100% 29. What is the name of the process in which water is lost through the leaves? Respiration b. Assimilation a. Photosynthesis Osmosis C. d. e. Transpiration 30. What is the name of the process that allows the reabsorption of water into the roots? Respiration Assimilation a. b. Photosynthesis Osmosis С. d. e. Transpiration 1. Water molecules will aggregate together due to which type of bonds? a. molecular nonpolar hydrogen d. diatomic b. C. The bonds that hold water molecules to each other are very strong and hard to break. a. True b. False Cell water potential is affected by all of these, Except: a. Solute potential Hydrostatic pressure Gravity Temperature b. C. d.arrow_forwardAnalyze each statement (A and B) whether they are true or false. Use the choices below in answering each item; A statement A is true B statement B is true C both A and B are true D neither A nor B are true (A) soil color is directly related to soil organic matter content. (B) the higher the value, the higher the soil’s organic matter contentarrow_forward(a) Younger plant parts/materials decompose faster compared to older more lignified plant parts/materials; (b) Materials with narrow C:N ratio will decompose more easily compared to materials with wider C:N ratio. A. If statement A is true B. if statement B is true C. both statement A and B are true D. statement A nor B are truearrow_forward
- Permanent Wilting point occurs at a water concentration when Group of answer choices a. The water attached to the soil particle can’t be pulled off by the plant. b. When the soil is saturated c. All free water has drained from the soil and that remaining is held to the soil particle against gravitational pull. d) All of the abovearrow_forwardAnalyze each statement (A and B) whether they are true or false. Use the choices below in answering each item; A statement A is true B statement B is true C both A and B are true D neither A nor B are true (A) Soil moisture is the most variable physical property of the soil. (B) Soil moisture involves all the water that is in the soil including potential water that might arise from various biogeochemical reactions in the soil.arrow_forwardWhich of the following is not an element of soil sustainability? a. Green manures b. Plowing C. Mulching d. Mixed farming e. Contour plowing Which of the following is not a phenolic a. Flavones b. Anthocyanins С. Coumarins d. Rubber e. Taninsarrow_forward
- Which factors affect soil quality? a. chemical composition b. history of the soil c. presence of living organisms and topography d. all of the abovearrow_forwardWhich of the following statements is NOT as description of soil? A. Varying nutritional content. B. Phototropic microbes are found only on the top few centimeters. C. A homogenous layer of organic and inorganic material. D. The area around the plant soil usually has the highest microbial populations.arrow_forwardThe Casparian strip affectsa. how water and minerals move into the vascular cylinder.b. vascular tissue composition.c. how soil particles function.d. cation exchange.e. Both a and c are correct.arrow_forward
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